The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 11, 2011
Filed:
Aug. 24, 2006
Donald A. Bittel, San Jose, CA (US);
Paul Macdougal, Raleigh, NC (US);
Manas Mandal, Palo Alto, CA (US);
Colyn S. Case, Hyde Park, VT (US);
Donald A. Bittel, San Jose, CA (US);
Paul MacDougal, Raleigh, NC (US);
Manas Mandal, Palo Alto, CA (US);
Colyn S. Case, Hyde Park, VT (US);
NVIDIA Corporation, Santa Clara, CA (US);
Abstract
A raster operations (ROP) unit interleaves read and write requests for efficiently communicating with a frame buffer via a PCI Express (PCI E) link or other system bus that provides separate upstream and downstream data transfer paths. One example of a ROP unit processes pixels in groups, performing read modify writeback sequences for each group. The read requests associated with pixels in a second group are advantageously interleaved with the writeback requests for pixels in the first group prior to sending the requests on the system bus.